NAME

       ares_set_servers - Initialize an ares_channel name servers configuration

SYNOPSIS

       #include <ares.h>

       int ares_set_servers(ares_channel channel, struct ares_addr_node *servers)

DESCRIPTION

       The  ares_set_servers(3)  function  initializes name servers configuration for the channel
       data identified by channel, from a servers pointer to  a  linked  list  of  ares_addr_node
       structs holding name servers address data.

       The  name  server  linked  list  pointer  argument may be the result of a previous call to
       ares_get_servers(3) or a linked list of ares_addr_node structs setup by other means.

       This function replaces any potentially previously configured name servers  with  the  ones
       given  in  the  linked  list.  So, in order to configure a channel with more than one name
       server all the desired ones must be specified in a single list.

       ares_set_servers(3) does not take ownership of the linked list argument.   The  caller  is
       responsible for freeing the linked list when no longer needed.

       This  function  is capable of handling IPv4 and IPv6 name server addresses simultaneously,
       rendering ares_init_options(3) with optmask ARES_OPT_SERVERS functionally obsolete  except
       for IPv4-only name server usage.

RETURN VALUES

       ares_set_servers(3) may return any of the following values:

       ARES_SUCCESS   The name servers configuration was successfuly initialized.

       ARES_ENOMEM    The process's available memory was exhausted.

       ARES_ENODATA   The channel data identified by channel was invalid.

       ARES_ENOTINITIALIZED
                      c-ares library initialization not yet performed.

SEE ALSO

       ares_set_servers_csv(3), ares_get_servers(3), ares_init_options(3), ares_dup(3)

AVAILABILITY

       ares_set_servers(3) was added in c-ares 1.7.1

AUTHOR

       Implementation  of  this  function  and  associated  library  internals are based on code,
       comments and feedback provided in November and December of 2008 by Daniel Stenberg, Gregor
       Jasny,  Phil  Blundell  and Yang Tse, December 2009 by Cedric Bail, February 2010 by Jakub
       Hrozek. On March 2010 Yang Tse shuffled all the bits and this function popped out.
       Copyright 1998 by the Massachusetts Institute of Technology.
       Copyright (C) 2008-2010 by Daniel Stenberg

                                           5 March 2010                       ARES_SET_SERVERS(3)